80 lines
1.1 KiB
Ruby
80 lines
1.1 KiB
Ruby
class Dependencies
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include Enumerable
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def initialize(*args)
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@deps = Array.new(*args)
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end
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def each(*args, &block)
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@deps.each(*args, &block)
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end
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def <<(o)
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@deps << o unless @deps.include? o
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self
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end
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def empty?
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@deps.empty?
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end
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def *(arg)
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@deps * arg
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end
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alias_method :to_ary, :to_a
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def optional
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select(&:optional?)
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end
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def recommended
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select(&:recommended?)
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end
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def build
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select(&:build?)
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end
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def required
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select(&:required?)
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end
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def default
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build + required + recommended
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end
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attr_reader :deps
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protected :deps
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def ==(other)
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deps == other.deps
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end
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alias_method :eql?, :==
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end
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class Requirements
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include Enumerable
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def initialize(*args)
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@reqs = Set.new(*args)
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end
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def each(*args, &block)
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@reqs.each(*args, &block)
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end
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def <<(other)
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if Comparable === other
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@reqs.grep(other.class) do |req|
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return self if req > other
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@reqs.delete(req)
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end
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end
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@reqs << other
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self
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end
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alias_method :to_ary, :to_a
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end
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